Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
nhung don » nhung van, nhung bo
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
dan toan » van toan, dan than, manh toan

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh tranh cua ((nhung don) OR (dung cong)) ((dan toan) OR (van ban)) cau~.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh tranh cua ((nhung don) or (dung cong)) ((dan toan) or (van ban)) cau*.